108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
#ifndef NETLINK_MUSL_H
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#define NETLINK_MUSL_H
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#if !__linux__
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#error netlink-musl.h only works with a linux kernel
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#endif
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#if __ANDROID__
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#error netlink-musl.h does not work with Android
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#endif
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#include <stdint.h>
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/* linux/netlink.h */
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#define NETLINK_ROUTE 0
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struct nlmsghdr {
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uint32_t nlmsg_len;
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uint16_t nlmsg_type;
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uint16_t nlmsg_flags;
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uint32_t nlmsg_seq;
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uint32_t nlmsg_pid;
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};
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#define NLM_F_REQUEST 1
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#define NLM_F_MULTI 2
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#define NLM_F_ACK 4
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#define NLM_F_ROOT 0x100
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#define NLM_F_MATCH 0x200
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#define NLM_F_ATOMIC 0x400
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#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
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#define NLMSG_NOOP 0x1
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#define NLMSG_ERROR 0x2
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#define NLMSG_DONE 0x3
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#define NLMSG_OVERRUN 0x4
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/* linux/rtnetlink.h */
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#define RTM_NEWLINK 16
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#define RTM_GETLINK 18
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#define RTM_NEWADDR 20
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#define RTM_GETADDR 22
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struct rtattr {
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unsigned short rta_len;
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unsigned short rta_type;
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};
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struct rtgenmsg {
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unsigned char rtgen_family;
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};
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struct ifinfomsg {
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unsigned char ifi_family;
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unsigned char __ifi_pad;
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unsigned short ifi_type;
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int ifi_index;
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unsigned ifi_flags;
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unsigned ifi_change;
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};
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/* linux/if_link.h */
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#define IFLA_ADDRESS 1
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#define IFLA_BROADCAST 2
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#define IFLA_IFNAME 3
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#define IFLA_STATS 7
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/* linux/if_addr.h */
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struct ifaddrmsg {
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uint8_t ifa_family;
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uint8_t ifa_prefixlen;
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uint8_t ifa_flags;
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uint8_t ifa_scope;
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uint32_t ifa_index;
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};
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#define IFA_ADDRESS 1
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#define IFA_LOCAL 2
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#define IFA_LABEL 3
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#define IFA_BROADCAST 4
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/* musl */
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#define NETLINK_ALIGN(len) (((len)+3) & ~3)
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#define NLMSG_DATA(nlh) ((void*)((char*)(nlh)+sizeof(struct nlmsghdr)))
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#define NLMSG_DATALEN(nlh) ((nlh)->nlmsg_len-sizeof(struct nlmsghdr))
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#define NLMSG_DATAEND(nlh) ((char*)(nlh)+(nlh)->nlmsg_len)
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#define NLMSG_NEXT(nlh) (struct nlmsghdr*)((char*)(nlh)+NETLINK_ALIGN((nlh)->nlmsg_len))
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#define NLMSG_OK(nlh,end) ((char*)(end)-(char*)(nlh) >= sizeof(struct nlmsghdr))
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#define RTA_DATA(rta) ((void*)((char*)(rta)+sizeof(struct rtattr)))
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#define RTA_DATALEN(rta) ((rta)->rta_len-sizeof(struct rtattr))
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#define RTA_DATAEND(rta) ((char*)(rta)+(rta)->rta_len)
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#define RTA_NEXT(rta) (struct rtattr*)((char*)(rta)+NETLINK_ALIGN((rta)->rta_len))
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#define RTA_OK(nlh,end) ((char*)(end)-(char*)(rta) >= sizeof(struct rtattr))
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#define NLMSG_RTA(nlh,len) ((void*)((char*)(nlh)+sizeof(struct nlmsghdr)+NETLINK_ALIGN(len)))
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#define NLMSG_RTAOK(rta,nlh) RTA_OK(rta,NLMSG_DATAEND(nlh))
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int __rtnetlink_enumerate(int link_af, int addr_af, int (*cb)(void *ctx, struct nlmsghdr *h), void *ctx);
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#endif // NETLINK_MUSL_H
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